Abstract
Nylon elastomers composed of polyether as soft segment and nylon as hard segment were synthesized by the interfacial or low temperature solution polycondensation of polyether (polybutylene glycol or polyethylene glycol) with diacid chloride (sebacyl chloride or adipyl chloride) and diamine (hexamethylene diamine).The reduced specific viscosities of polymers obtained by the interfacial method were remarkably higher than those of polymers obtained by the low temperature solution method. The polyether/nylon compositions of polymers estimated by the IR method coincided satisfactorily with those calculated from the monomer ratio. The melting point depressions of polymers with increasing polyether content were smaller than those of random copolymers calculated by Flory's equation when the chain length of polyether was shorter and were larger than those when the chain length of polyether was longer.
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